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IM 04L51B01-01EN
Using Modbus Functions (Communicating with Modbus devices)
4
Unit I/O Channel Data Hold Register Data Type
Expandable I/O 2 Lower bytes of the channel 2001 data 416001 32-bit floating point
Higher bytes of the channel 2001 data 416002
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Lower bytes of the channel 2050 data 416099
Higher bytes of the channel 2050 data 416100
Lower bytes of the channel 2101 data 416101
Higher bytes of the channel 2101 data 416102
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Lower bytes of the channel 2150 data 416199
Higher bytes of the channel 2150 data 416200
Lower bytes of the channel 2201 data 416201
Higher bytes of the channel 2201 data 416202
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Lower bytes of the channel 2250 data 416299
Higher bytes of the channel 2250 data 416300
Lower bytes of the channel 2301 data 416301
Higher bytes of the channel 2301 data 416302
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Higher bytes of the channel 2350 data 416399
Higher bytes of the channel 2350 data 416400
Lower bytes of the channel 2401 data 416401
Higher bytes of the channel 2401 data 416402
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Higher bytes of the channel 2450 data 416499
Higher bytes of the channel 2450 data 416500
Lower bytes of the channel 2501 data 416501
Higher bytes of the channel 2501 data 416502
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Higher bytes of the channel 2550 data 416599
Higher bytes of the channel 2550 data 416600
Expandable I/O 3 Lower bytes of the channel 3001 data 421001
Higher bytes of the channel 3001 data 421002
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Lower bytes of the channel 3050 data 421099
Higher bytes of the channel 3050 data 421100
Lower bytes of the channel 3101 data 421101
Higher bytes of the channel 3101 data 421102
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Lower bytes of the channel 3150 data 421199
Higher bytes of the channel 3150 data 421200
Lower bytes of the channel 3201 data 421201
Higher bytes of the channel 3201 data 421202
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Lower bytes of the channel 3250 data 421299
Higher bytes of the channel 3250 data 421300
Lower bytes of the channel 3301 data 421301
Higher bytes of the channel 3301 data 421302
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Lower bytes of the channel 3350 data 421399
Higher bytes of the channel 3350 data 421400
Lower bytes of the channel 3401 data 421401
Higher bytes of the channel 3401 data 421402
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Lower bytes of the channel 3450 data 421499
Higher bytes of the channel 3450 data 421500
Lower bytes of the channel 3501 data 421501
Higher bytes of the channel 3501 data 421502
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Lower bytes of the channel 3550 data 421599
Higher bytes of the channel 3550 data 421600
Continued on next page
4.5 Modbus Function and Register Assignments